45717642 has 32 divisors (see below), whose sum is σ = 102029760. Its totient is φ = 15174000.

The previous prime is 45717631. The next prime is 45717649. The reversal of 45717642 is 24671754.

45717642 is a `hidden beast` number, since 4 + 5 + 7 + 1 + 7 + 642 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 45717597 and 45717606.

It is not an unprimeable number, because it can be changed into a prime (45717649) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11868 + ... + 15240.

It is an arithmetic number, because the mean of its divisors is an integer number (3188430).

Almost surely, 2^45717642 is an apocalyptic number.

45717642 is an abundant number, since it is smaller than the sum of its proper divisors (56312118).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

45717642 is a wasteful number, since it uses less digits than its factorization.

45717642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3635 (or 3629 counting only the distinct ones).

The product of its digits is 47040, while the sum is 36.

The square root of 45717642 is about 6761.4822339484. The cubic root of 45717642 is about 357.5701643952.

The spelling of 45717642 in words is "forty-five million, seven hundred seventeen thousand, six hundred forty-two".